VK_KHR_shader_atomic_int64 This extension advertises the SPIR-V Int64Atomics capability for Vulkan, which allows a shader to contain 64-bit atomic operations on signed and unsigned integers

VK_KHR_driver_properties This extension provides a new physical device query which allows retrieving information about the driver implementation, allowing applications to determine which physical device corresponds to which particular vendor’s driver, and which conformance test suite version the driver implementation is compliant with

SPV_GOOGLE_decorate_string This extension provides two new instructions to decorate a variable or a struct member with a string

SPV_GOOGLE_hlsl_functionality1 This extension provides two new decorations to extend HLSL functionality: HlslCounterBuffer and HlslSemantic.

Stutter may be observed when exceeding Radeon FreeSync range in certain high framerate scenarios

System configurations with 16 CPU cores may experience a random system reboot during installation when upgrading Radeon Software from a version older than RSAE 18.8.1.

Known Issues

Some AMD Ryzen™ Desktop Processors with Radeon™ Vega Graphics system configurations may experience a black screen during installation downgrade to a previous Radeon Software version. A recommended workaround is to perform a clean install during Radeon Software installation

Radeon FreeSync may fail to enable when playing Monster Hunter : World.

Video profiles may not correctly apply on web browser video content.

Added Vulkan Extension Support

VK_EXT_descriptor_indexing

This extension adds several small features which together enable applications to create large descriptor sets containing substantially all of their resources and selecting amongst those resources with dynamic (non-uniform) indexes in the shader.

VK_KHR_get_display_properties2

This extension provides new entry points to query device display properties and capabilities in a way that can be easily extended by other extensions, without introducing any further entry points.

VK_KHR_8bit_storage

This extension allows use of 8-bit types in uniform and storage buffers and push constant blocks.

VK_KHR_draw_indirect_count

This extension allows an application to source the number of draw calls for indirect draw calls from a buffer.

VK_KHR_create_renderpass2

This extension provides a new entry point to create render passes in a way that can be easily extended by other extensions through the substructures of render pass creation.

EXT_vertex_attribute_divisor

This extension allows instance-rate vertex attributes to be repeated for certain number of instances instead of advancing for every instance when instanced rendering is enabled.

: When playing a game in full-screen mode and playing a video from the Netflix Edge Browser, blue-screen crash occurs after multiple switching between the two. The issue does not occur when playing the Netflix video in a Chrome browser.

Destiny™2 may experience increasing load time durations when the game is run for extended periods of time

Tearing may be observed in some borderless fullscreen games on Radeon FreeSync enabled displays when Radeon Software performance metrics is enabled

Netflix™ playback through a web browser may experience corruption or hangs when using multi GPU enabled system configurations with Radeon RX 400 series or Radeon RX 500 series graphics products

Radeon ReLive streaming or uploading of videos to Facebook™ may intermittently fail.

Known Issues

Some games may experience minor stuttering during gameplay when the Radeon ReLive Instant Replay feature is enabled and FRTC is also enabled

Radeon Overlay may not show all available features when some games are run in borderless fullscreen mode

The Witcher™ 3: Wild Hunt may experience stuttering during gameplay

A system hang may occur on a small number of system configurations after Radeon Software installation if Radeon Settings is launched without a system reboot. A workaround is to reboot your system after install.